Applicator for applying a composition to the eyelashes or the eyebrows

ABSTRACT

The present invention relates to an applicator for applying a composition to keratinous fibers, in particular the eyelashes or the eyebrows, the applicator comprising: a stem having a longitudinal axis and including at least one elastically-deformable flexible portion that is suitable for flexing during application and/or wiping; and an applicator element that is fastened to the stem and that includes a twisted wire core and bristles that extend transversally to the longitudinal axis of the stem.

This is a Continuation of application Ser. No. 11/976,900 filed Oct. 29,2007, which in turn claims the benefit of French Application No. 0654697 filed Nov. 2, 2006 and U.S. Provisional Application No. 60/866,717filed on Nov. 21, 2006. The prior applications, including thespecifications, drawings and abstracts are incorporated herein byreference in their entirety.

The present invention relates to applicators for applying makeup or acare product to keratinous fibers, and more particularly, but notexclusively, to the eyelashes or the eyebrows.

The invention relates to an applicator comprising a stem and anapplicator element that is disposed at one end of the stem.

BACKGROUND

Mascara applicators are known including a stem that is relatively rigid.

U.S. application Ser. No. 6,305,861 discloses applicators includingrelatively thin stems of small section over a large fraction of theirlength, and thus being very flexible. Under certain applicationconditions, the flexibility of the stem can reduce precision in applyingmakeup. In addition, such stems cannot be wiped in satisfactory mannerwhen they are used with certain types of wiper members, e.g. annular-lipwiper members.

Patent application FR-A-2 759 872 discloses an applicator including aflat handle that includes a narrowing.

In addition, application FR 2 705 876 discloses an applicator having astem that is provided with a narrowing that comes to be positionedfacing a wiper member. The narrowing does not impart any flexibilityduring application.

US 2006/0042467 A1 discloses a mascara applicator comprising a stemhaving a flexible portion and carrying an application member. The lattercomprises a housing configured for receiving a support portion connectedto the stem. The application member is rotatable, in an embodiment. Thepresence of the housing necessitates to make the application member in aspecific manner.

SUMMARY

There exists a need to improve still further applicators for applyingmakeup to keratinous fibers, in particular the eyelashes or theeyebrows, and to have a novel applicator that is comfortable and easy touse.

The present invention seeks, in particular, to satisfy that need.

The invention provides an applicator for applying a composition tokeratinous fibers, in particular the eyelashes or the eyebrows, theapplicator comprising:

a stem having a longitudinal axis and including at least oneelastically-deformable flexible portion that is suitable for flexingduring application and/or wiping; and

an applicator element that is fastened to the stem and that includesbristles or teeth that extend transversally to the longitudinal axis ofthe stem.

The invention makes it possible to apply makeup accurately.

The presence of the flexible portion imparts lightness in application,even with a relatively rigid applicator element such as a comb, forexample, or with a brush having relatively stiff bristles.

Since the stem is connected to a handle, the flexible portion may alsoserve, while the applicator element is being removed from thereceptacle, to enable the applicator element to form an angle with thehandle, thereby enabling the applicator element to remain more easily inalignment with the longitudinal axis of the receptacle containing thecomposition. When said receptacle is provided with a wiper member, theapplicator element may be wiped more effectively, with the compositionbeing distributed in more uniform manner on the applicator element.

The flexible portion also enables the user to incline the handlerelative to the receptacle using a natural movement of the band, whilethe applicator element is being removed.

The resistance of the composition on the eyelashes or the eyebrows canslow down and deform the applicator element, which, in deforming,accumulates elastic energy. The restoration of elastic energy thusaccumulated when the applicator element relaxes on arriving at the tipsof the eyelashes or the eyebrow hairs may result in an acceleration andan additional movement that is likely to improve the extension and theseparation of the eyelashes or the eyebrow hairs.

The flexible portion may also reduce the risk of poking the eye hardwith the applicator element.

The term “elastically deformable” should be understood as the flexibleportion presenting a certain amount of shape memory. The expression“elastically deformable” should be understood in a broad sense, and, inparticular, covers the flexible portion, after having been deformed,returning by elasticity to a position that is not exactly identical toits initial position, given the nature of the material used to make theflexible portion and the shape of said flexible portion, for example.

The term “rigid portion” should be understood as being a portion thatdoes not deform substantially during application. A rigid portion may besubjected to a small amount of deformation overall when stress isexerted thereon by the fingers, for example.

By way of example, the flexible portion is capable of flexing so as tomodify the orientation of the entire applicator element over more than30°, for example.

The flexibility of the flexible portion may result from its shape and/orfrom the material(s) used to make it.

Stem

The term “stem” refers to the assembly formed by the flexible portion(s)and by the rigid portion(s) of the stem.

The stem extends axially between the handle and the applicator element.The length of the stem is measured between its end adjacent to theapplicator element and its end for connecting to the handle, e.g. theend where the stem is connected to a transverse plate, inside thehandle.

The flexible portion may extend along a longitudinal axis that isoptionally rectilinear, the axis extending in alignment with the axis ofthe applicator element.

The flexible portion may be made by molding, e.g. by injection molding athermoplastic material. In particular, the flexible portion need not bestamped. The flexible portion may be made by being overmolded onto arigid portion of the stem. In a variant, the flexible portion may befastened to the remainder of the stem by snap-fastening, by adhesive, byscrew-fastening, by force-fitting, or by crimping. The stem may includea rigid portion having at least one housing for receiving at least onefastener portion for fastening the flexible portion on the rigidportion. In a variant, the flexible portion may include at least onehousing for receiving at least one fastener portion for fastening therigid portion of the stem on the flexible portion. The fastener portionof the flexible portion may present an enlarged head or a narrowing inorder to improve the hold by the rigid portion of the stem in the eventof crimping.

The flexible portion of the stem may be hot or cold mounted on theremainder of the stem and/or on the applicator element, in particular bymeans of its deformability, or it may be overmolded onto the remainderof the stem and/or onto the applicator element.

The flexibility of the flexible portion may be selected as a function ofthe properties desired for application, e.g. by selecting material(s)that make up the flexible portion, in particular their Shore hardness.The hardnesses of the materials of the flexible portion of the stem andthe adjacent rigid portion of the stem may be different.

The flexible portion may be made, at least in part, of a material fromthe following list: elastomer, thermoplastic, or thermoplastic elastomermaterial; low-density polyethylene (LDPE); polyvinyl chloride (PVC);polyurethane (PU); thermoplastic elastomer polyesters, in particularcopolymers of butene terephthalate and esterified polytetramethyleneoxide glycol; Hytrel®; ethylene-propylene terpolymer rubber (EPDM);phenylene dimaleimide (PDM); ethylene vinyl acetate copolymer (EVA);styrene-isoprene-styrene (SIS); styrene-ethylene-butylene-styrene(SEBS); styrene-butadiene-styrene (SBS); latex; silicone; nitrilerubber; butyl; polyurethane; polyether block amide; and polyester; thislist not being limiting.

The flexible portion may be made of a material having hardness that liesin the range 25 on the Shore A scale to 80 on the Shore D scale, forexample, or even that lies in the range 40 on the Shore A scale to 70 onthe Shore D Scale.

The total visible length l of the flexible portion lies in the range 10millimeters (mm) to 35 mm, for example.

A greatest transverse outside dimension of the flexible portion lies inthe range 2 mm to 10 mm, for example.

The flexible portion may be magnetizable, e.g. including a filler ofmagnetic particles or of magnetic fibers.

The flexibility of the flexible portion may vary as a function of thecross-section and of the profile of the flexible portion.

The flexible portion may have a cross-section that is solid or hollowand of shape that varies, e.g. of shape selected from the followinglist: polygonal; square; rectangular; triangular; circular;non-circular; oblong; oval; elliptical; notched; star-shaped; or withone or more annular or axial grooves.

The flexible portion may be circularly symmetrical about thelongitudinal axis of the stem.

The flexible portion may present a narrowing, where appropriate. Thenarrowing may be of annular shape. Thus, in some embodiments, theflexible portion of the stem is hourglass shaped, or it presents anannular groove that is crenellated.

Also, the flexible portion of the stem need not be circularlysymmetrical. Such a shape makes it possible to obtain stem flexibilitythat varies along the direction of inclination of the applicator elementrelative to its initial configuration. In particular, the flexibleportion of the stem may present a cross-section that is generallyelongate in shape. The handle may include at least one reception zonefor receiving a finger, in particular a flat or an indent that maygenerally extend substantially parallel to a long axis of across-section of the flexible portion. The shape of the handle need notbe circularly symmetrical, thereby favoring a predefined orientation forholding the applicator.

The flexible portion may be symmetrical about a mid-plane.

The flexible portion may have a greatest transverse dimension, e.g. anoutside diameter of the flexible portion, that is equal to a greatesttransverse dimension of the stem, e.g. an outside diameter of the stem.In a variant, the flexible portion may have a greatest transversedimension that is greater than a greatest transverse dimension of thestem. Still in a variant, the flexible portion may have a greatesttransverse dimension that is less than a greatest transverse dimensionof the stem.

The flexible portion may be flocked, at least partially, which may allowthe flexible portion to be loaded with product and to be used to applythe product on the eyelashes or the eyebrows, for example. The flockedportion may be magnetic or magnetisable, which may allow the flockedportion for example to exert an action on the product before and/orafter application, for example to lengthen the lashes when the productcomprises magnetic pigments or filler.

The visible portion of the flexible portion may be thinner than itsportion for fastening in the portion of the stem.

The stem may include a single flexible portion, the remainder of thestem being rigid, i.e. not deforming substantially during application.

The stem may be circularly cylindrical or substantially circularlycylindrical, at least over a major fraction of its length. By way ofexample, the stem may be other than flat along a plane. By way ofexample, the length of the stem may be much greater than its width, e.g.more than twice, or even more than three times, better more than fivetimes greater than its width.

The stem may be connected rigidly to the handle. In a variant, a hingemay be present between the stem and the handle.

The flexible portion may be disposed at a first end of the rigid portionof the stem, and it may be adjacent to the applicator element.

The flexible portion may include a housing for fastening the applicatorelement, in particular for receiving a portion of the applicatorelement, e.g. the core of the applicator element.

In a variant, the flexible portion may be disposed between a rigiddistal portion of the stem, and a rigid proximal portion of the stem.

The stem may include a rigid distal portion that extends between theapplicator element and the flexible portion, and a rigid proximalportion that extends between the flexible portion and a second end ofthe stem that is connected to the handle. The rigid proximal and distalportions of the stem are thus interconnected via the flexible portion.The rigid distal and proximal portions may present the same diameter.

The length of the rigid proximal portion of the stem may be greater thanthe length of the rigid distal portion of the stem. The length of theproximal portion may be greater than the length of the distal portion bya factor of 1.5, better 1.7, or even at least 2.

The length of the flexible portion may be less than the length of atleast one of the rigid distal and proximal portions. In particular, theflexible portion may extend over less than one third of the total lengthof the stem, better over less than one fourth.

The stem may include a rigid top half, the flexible portion beingsituated in the bottom half of the stem, thereby being close to theapplicator element.

The flexible portion of the stem may deform during application so as toenable the applicator element or the rigid distal portion of the stem tobecome substantially inclined relative to the rigid proximal portion ofthe stem.

The rigid distal and proximal portions may each be substantiallyrectilinear during application.

Regardless of how the stem is made, the flexible portion may beconfigured in such a manner that the entire applicator element can beinclined in reversible manner during application, e.g. by more than 10°,better 15°, still better 30°, or even by more than 45° or 60°, comparedto an initial rest configuration in which the applicator element and thestem are substantially in alignment, for example.

In some embodiments, the core of the applicator element need not deformin visible manner when the flexible portion deforms in order to modifythe orientation of the applicator element relative to the stem.

The rigid portion(s) of the stem may have a cross-section that is solidor hollow, and of shape selected from the following list: circular;non-circular; oblong; oval; elliptical; polygonal; square; rectangular;triangular; kidney-shaped; notched; star-shaped; or with one or moregrooves. A circular cross-section may be preferred.

The proximal and distal portions may be made of the same material, orelse of two respective different materials, at least in part.

The rigid portion(s) of the stem may be made of a thermoplasticmaterial, in particular one of the materials selected from the followinglist: high-density polyethylene (HDPE); low-density polyethylene (LDPE);linear polyethylene (LPE); PT; polypropylene (PP), polyoxymethylene(POM); polyamide (PA); polyethylene terephthalate (PET); andpolybutylene terephthalate (PBT); this list not being limiting.

The end of the stem to which the applicator element is fastened mayinclude a housing for fastening the applicator element. The housing maybe formed in the flexible portion or in a rigid distal portion of thestem. A rigid portion of the stem may also include a housing forfastening the flexible portion thereon. Both housings may be ofidentical shape and size, at least before fastenings the applicatorelement or the flexible portion, thereby making it easy to eliminate theflexible portion in order to fasten the applicator element directly tothe rigid portion of the stem.

When the housing for fastening the applicator element is formed in theflexible portion in particular, the housing may be configured to make itpossible to fasten applicator elements having fastener portions ofdifferent sizes. The size and the shape of the housing may be variable,e.g. because of the deformability of the material of the flexibleportion.

The flexible portion may comprise an endpiece which is fixed in ahousing of the rigid portion of the stem by crimping, i.e. by deformingthe wall defining the housing.

The end of the stem to which the applicator element is connected may bebeveled so as to make it easier for the applicator to be inserted intothe receptacle and to pass through the wiper member. In an embodiment,it is the flexible portion that is beveled. The stem may include a rigidportion that is not beveled at its end adjacent to the flexible portion.

The rigid portion of the stem and the flexible portion preferably havetransverse dimensions that are close so as to favor wiping, e.g. theyhave the same diameter.

At its second end, the stem may include a fastener portion for fasteningon the handle, e.g. an endpiece for force-fitting and/or snap-fasteningin the handle. The endpiece may include a tubular skirt with a plate atits base. The stem may also be molded with the handle.

The handle may be arranged in such a manner as to close, in leaktightmanner, a receptacle containing the composition for application.

The handle may include fastener means for fastening on the receptacle,e.g. a thread or at least one annular snap-fastener bead.

Applicator Element

The applicator element may extend along a longitudinal axis that neednot be perpendicular to a longitudinal axis of the stem. By way ofexample, both axes may substantially coincide or may form between theman angle that is strictly less than 90°.

The applicator element may include a fastener portion for fastening tothe stem, said fastener portion having a length that is preferably lessthan the length of the flexible portion, the lengths being measuredalong the longitudinal axis of the stem.

The applicator element may include a core that is more rigid than theflexible portion of the stem.

In an exemplary embodiment which is advantageous the applicator membercomprises a twisted wire core. By “twisted wire core” one understands acore comprising at least two lengths of a metallic wire that aretwisted. The core may be with a simple twisting, comprising only twowires twisted together, or be with double twisting, comprising twotwisted wires arrangements twisted together to hold bristles, eachtwisted wire arrangement possibly holding bristles or not.

An advantage lying with the use of such a twisted wire core is that mostmascara brushes existing on the market are made with such a twisted wirecore.

The core may be non rotateable with respect to the stem around thelongitudinal axis of the stem.

When the core comprises two lengths of metallic wire twisted together,the wires may be twisted with a left pitch or a right pitch.

The wire forming the wire length may have a diameter ranking from 0.35to 1 mm, for example.

In this event, the fastener portion may be a portion of the core thatdoes not have bristles, said portion being for inserting into acorresponding housing of the stem, e.g. a housing of the flexibleportion or of a rigid portion of the stem.

The use of a twisted wire core may allow, eventually, a better holdingof the core in the flexible portion, thanks to a cold or hot forcefitting.

The envelope surface of the applicator element may present across-section that is not circular at at least one point along itslength. At at least one point along its length, the cross-section of theenvelope surface of the applicator element may present a general shapeselected from the following list: non circular, polygonal, in particulartriangular, square, rectangular, pentagonal, or hexagonal; oblong, inparticular oval or lens-shaped; or some other shape.

For at least one cross-section of the envelope surface, the core maydefine a center of symmetry of said section. The core may also beoff-center within the cross-section of the envelope surface at at leastone point along the length of the applicator element.

The envelope surface may be of non-constant cross-section over the majorportion of the length of the applicator element.

The applicator element may present at least one concave face. Theapplicator element may present at least one convex face, of radius ofcurvature, when the applicator element is observed in cross-section,that is greater than the length of the longest bristle extending fromthe core in said cross-section.

The core of the applicator element may include a substantiallyrectilinear portion that possibly forms an angle with the longitudinalaxis of the stem that is less than 20°.

The core may present a free end, remote from the stem, that mayconstitute the point of the core that is the furthest away from thelongitudinal axis of the stem. The free end of the core may be situatedat a distance from the longitudinal axis of the stem of less than 7.5mm.

According to other aspects of the present invention the applicatormember does not comprise a twisted wire core.

The core may for example include at least one through hole in which abundle of bristles is held. The bundle of bristles may have a first endand may divide on going away from the first end into at least twosub-bundles of bristles that extend, at least in part, outside the core.The bristles of a bundle may be separated into two sub-bundles so as toform a V, for example, or they may be separated into more sub-bundles soas to form an X, for example. Such an applicator element is described inEP 1 454 561.

The applicator element may also be made by molding a plastics material,in particular by injection molding, and it may form an injection-moldedcomb or brush. The applicator element may include a core and bristles orteeth extending from the core.

The material of the applicator element may be selected so as to matchthe flexibility of said applicator element to the desired use. By way ofexample, it may be selected in such a manner that the applicator elementis sufficiently flexible.

The fastener portion may be an end portion, e.g. a cylindrical portion,that does not have teeth or bristles, for inserting into a correspondinghousing of the stem, for example.

In a variant, the flexible portion is made integrally with all or partof the applicator element, before said applicator element is fastened tothe remainder of the stem. However, in this event and in the meaning ofthe present invention, the flexible portion is considered as formingpart of the stem.

Bristles

The applicator may include bristles having a greatest transversedimension lying in the range 65 micrometers (μm) to 400 μm, for example.

The bristles may be solid or hollow, of optionally circular section.

The bristles may optionally come into contact with the flexible portion.

The applicator may include at least one bristle made of anelastically-deformable material, such as an elastomer, for example.

The applicator may include at least one bristle including a compound,e.g. a particulate or other compound, making it possible to improvesliding of the bristle over keratinous fibers, or, in contrast, makingit possible to create surface roughness to catch the fibers morestrongly.

The applicator may include a mixture of bristles.

The applicator may include bristles having different diameters.

The applicator may include at least one bristle presenting at least oneundulation, and, in particular, it may include at least two bristles,each including at least one periodic pattern presenting at least oneundulation, at least two periodic patterns being different. The twodifferent periodic patterns may belong to two distinct bristles or tothe same bristle, and the undulations may present different shapes, e.g.a sawtooth shape or a sinusoidal shape, or even different amplitudes, oreven undulations of different spatial frequencies. The expression“periodic pattern” means, within a bristle, a portion of said bristlethat is substantially reproduced, in periodic manner, along the bristle.

The applicator may include bristles that are made other than by beinginjection-molded with the core, and the applicator element may includeat least one portion having curved bristles extending in oriented mannerfrom the core, e.g. as described in US application No. 2004/0168698. Theterm “extending in oriented manner” means that the curved bristlesextend with a general orientation that is defined during manufacture ofthe applicator element, and they do not extend with completely randomorientations. In particular, the bristles may be oriented in the samecircumferential direction around the core. The bristles of theapplicator element may be curved by contact with a hot surface, inparticular a surface moving relative to the applicator element.

By way of example, the applicator element may include at least twodeformed bristles that are engaged between two adjacent turns, eachbristle presenting a removal of material or a flattening at at least onepoint along its length from the core, and extending outwards,non-radially, from said point, as described in US application No.2004/0240926. Each deformed bristle may include two rectilinear portionsforming a bend between them. The two rectilinear portions may presentthe same cross-section. All of the deformed bristles may define bendsthat are all situated substantially at the same distance from the core.

By way of example, the applicator element may include 5 to 80 bristlesper turn, even 15 to 40, in particular 10 to 50 bristles per turn. Theapplicator element may also include only 5 to 20 bristles per turn. Thenumber of bristles per turn corresponds to the number of bristle endscounted by a stationary observer while the applicator element turnsthrough 180° about its core.

The applicator may include twisted bristles, e.g. as described in U.S.Pat. No. 6,390,708.

The applicator element may be caused to vibrate either by a generatorthat is mounted in the applicator, in particular on the handle, inoptionally removable manner, or by an external vibrating element that ismounted on a finger of the user, for example.

Packaging and Applicator Devices

The invention also provides a packaging and applicator device forapplying a cosmetic composition, the device comprising an applicator asdefined above, and a receptacle containing the composition forapplication.

The device may further include a wiper member that is disposed in such amanner as to wipe the applicator element while it is being removed fromthe receptacle. The wiper member may be fastened in the neck of thereceptacle.

The wiper member may include a lip made of elastomer or of polyethylene,or, in a variant, it may comprise a block of foam, e.g. slotted in itsmiddle. Also, the wiper member need not include any porous material.

The wiper member may be adjustable, in particular so as to make itpossible to adjust the size of the wiper orifice.

The composition is makeup or a care product for the eyelashes or theeyebrows. The composition may be mascara, for example.

The composition may be a liquid, or a paste.

The handle may close the receptacle in leaktight manner, and it may bescrew-fastened on the neck of the receptacle, for example.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be better understood on reading the following detaileddescription of non-limiting embodiments thereof, and on examining theaccompanying drawings, in which:

FIGS. 1 and 2 are diagrammatic views in elevation, and partially inaxial section, showing an embodiment of a packaging and applicatordevice of the invention;

FIG. 1A is a view similar to FIG. 1 showing a variant embodiment;

FIG. 3 is a diagrammatic and fragmentary axial section view of theapplicator of the device in FIGS. 1 and 2;

FIGS. 4 to 10 and 10A to 10E are views similar to FIG. 3 showing variantembodiments;

FIG. 11 is a cross-section of the flexible portion of a variantembodiment;

FIG. 12 is an elevation view of a variant of an applicator;

FIG. 13 is a view similar to FIG. 3 showing a variant embodiment;

FIGS. 14 to 23 show examples of cross-sections of the envelope surfacesof brushes, amongst others;

FIGS. 24 to 32 are fragmentary views of variant embodiments of brushes;

FIGS. 33 and 34 show twisted cores respectively having left-hand andright-hand twist;

FIG. 35 diagrammatically shows a double core that is formed by twistingtogether two individual twisted cores.

FIGS. 36 to 53 show various examples of bristle cross-sections;

FIG. 54 shows a side view of an undulating bristle;

FIGS. 55 to 58 are fragmentary and diagrammatic views of examples ofbristles; and

FIGS. 59 to 61 show variant embodiments of the applicator element.

MORE DETAILED DESCRIPTION

FIGS. 1 to 3 show a packaging and applicator device 1 comprising: areceptacle 2 containing a composition P for application to the eyelashesor the eyebrows, e.g. mascara; and an applicator 3 comprising: a stem 4that is provided at its distal end 4 a with an applicator element 5 andthat is connected at its proximal end to a handle 6 that alsoconstitutes the closure cap for closing the receptacle 2. The receptacleis fitted with a wiper member 7, e.g. constituted by a part made ofelastomer that is inserted into the neck 8 of the receptacle. The wipermember 7 can optionally be conventional, indeed it can be adjustable.

In manner known per se, when screwed tight, the handle 6 is arranged toclose the receptacle 2 on the neck 8 in leaktight manner.

In the embodiment shown, the wiper member 7 defines a wiper orifice 9 ofcircular section, having a diameter that corresponds substantially tothe diameter of the stem 4, said stem being of circular cross-section inthe embodiment shown, at least over all of its portion engaged in thereceptacle.

In the embodiment under consideration, the stem 4 presents a rectilinearlongitudinal axis X that coincides substantially with the axis of theneck 8 of the receptacle 2 when the applicator 3 is in place on saidreceptacle.

The stem 4 includes both a rigid portion 4 g and a flexible portion 20that, in the embodiment described in FIGS. 1 to 3, extends from thedistal end 4 a of the stem 4.

In the embodiment shown in FIGS. 1 to 3, the flexible portion 20 is ofcircular cross-section, of diameter equal to the diameter of theremainder of the stem 4.

The flexible portion 20 is made of a material that is more flexible thanthe material of which the rigid portion 4 g is made, e.g. a materialfrom the following list: elastomer, thermoplastic, or thermoplasticelastomer material; LDPE PVC; Hytrel®; EPDM; EVA; SIS; SEBS; latex;silicone; nitrile rubber; butyl; polyurethane; and polyether blockamide.

By way of example, the rigid portion 4 g is made of polyolefin.

By way of example, the rigid portion is made of POM, with an outsidediameter of 4 mm and a length lying in the range 25 mm to 50 mm.

The flexible portion 20 makes it possible to impart flexibility to thestem 4, which is particularly useful while, the applicator element 5 isbeing removed from the receptacle 2, as shown in FIG. 2.

In this figure, it can be seen that while the applicator element 5 isbeing removed from the receptacle 2, even if the user pulls on theapplicator element 5 obliquely relative to the longitudinal axis of thereceptacle 2, the applicator element 5 can, by means of the flexibilityof the flexible portion 20, preserve an orientation that coincidessubstantially with the longitudinal axis of the receptacle 2 whilepassing through the wiper member 7.

In this way, the quality of the wiping of the applicator element 5 ispreserved with regard to its evenness, and application can be performedunder good conditions.

In addition, during application, the contact between the applicatorelement 5 and the eyelashes or the eyebrows can be lighter and theelasticity of the flexible portion can turn out to be advantageous forapplying the composition, extending and separating the eyelashes or theeyebrow hairs, as explained above.

In the embodiment under consideration, the applicator element is a brushincluding a core 10 formed by two twisted metal strands, the core 10having a proximal portion that is fastened in a housing of the stem 4,e.g. being force-fitted in the housing, as shown in FIG. 3.

The core 10 carries bristles 11 that are held by being clamped betweenthe turns of the core 10 and that extend substantially radially from thecore.

The flexible portion 20 can be fastened onto the rigid portion 4 g invarious ways, e.g. being force-fitted in a housing 22 of the rigidportion 4 g of the stem 4, as shown in FIG. 3.

In addition, the flexible portion 20 includes a housing 24 for receivinga fastener portion of the applicator element 5, and in particular inFIG. 3, an end of the core 10.

It can be seen in FIG. 3 that the housings 22 and 24 are the same sizeand the same shape, thereby making it possible to eliminate the flexibleportion 20 and to insert the core 10 into the housing 22 of the stem 4when the flexible portion 20 is not necessary, thereby making itpossible to make economies of scale.

Naturally, various modifications can be applied to the applicator, andin particular to the applicator element and to the flexible portion,without going beyond the ambit of the present invention.

The flexible portion 20 can be fastened onto the remainder of the stemin various ways.

By way of example, the flexible portion can include a housing 25 forreceiving a male fastener portion of the rigid portion 4 g, as shown inFIG. 4.

The flexible portion 20 can also be overmolded onto the rigid portion 4g or vice versa, or it can be held by being crimped in the housing 22 ofthe stem 4, as shown in FIG. 5.

In addition, the shape of the flexible portion 20 can be other thancylindrical, as shown in FIG. 6.

By way of example, the flexible portion 20 can include a beveled end, asshown in FIG. 6, thereby making it easier to put the applicator 3 backinto the receptacle 2.

The flexible portion 20 can also include a thinned portion, e.g. anhourglass shape, as shown in FIG. 7, or it can include an annular groove20 k that is crenellated, as shown in FIG. 8.

The embodiment of FIG. 8 is particularly advantageous, because it allowsto make the applicator member with a material which is not too softwhile having a good angular course for the applicator member. Theflexible portion has two preferential deformation zones, the first oneat the level of the groove 20K and the second one at the level of thebase 20 _(g) of the end piece inserted into the rigid portion. In thisexample, the visible surface of the visible portion adjacent to therigid portion is inscribed in the continuity of the rigid portion,having a same diameter.

The flexible portion 20 can also be inserted only partially into thehousing 22, as shown in FIG. 9, and, where appropriate, an annulargroove can be formed in front of the end of the rigid portion 4 g of thestem, the width of the groove depending on the degree to which thefastener portion of the flexible portion is pushed into the rigidportion of the stem.

The flexibility of the flexible portion can result solely from thechoice of material from which it is made, or else it can result bothfrom the choice of material and from its shape.

A thinned shape, as shown in FIGS. 7 to 9 can impart more flexibility.

It would not be beyond the ambit of the present invention for theflexible portion 20 to present a greatest transverse dimension that isgreater than a greatest transverse dimension of the remainder of thestem 4, as shown in FIG. 10.

FIG. 10A shows a variant in which the flexible portion 20 includes avisible portion 20A that presents a smallest transverse dimension thatis smaller than the smallest transverse dimension of the adjacentportion of the rigid portion 4 g.

Where appropriate, the flexible portion can be made with a collar 20 bthat comes into abutment against the adjacent axial end of the rigidportion 4 g.

FIG. 10B shows the possibility of making the flexible portion 20 with aprofile that varies between the portion of the flexible portion 20 thatis for fastening the applicator element 5, and the portion of theflexible portion that is for fastening in the rigid portion 4 g. In theembodiment shown and by way of example, the flexible portion includes aplurality of annular ribs 20 c that are separated by annular grooves 20d that define zones of smaller diameter, thereby increasing theflexibility of the flexible portion 20. In this figure, it can also beseen that the end of the portion of the flexible portion 20 forfastening on the rigid portion 4 g can include an enlarged head 20 ethat is held in a housing 300 of the rigid portion 4 g by crimping therigid portion 4 g in such a manner as to form an inwardly-directedindentation 301.

FIG. 10C shows the possibility of the flexible portion presenting aportion 20 f for fastening on the adjacent rigid portion 4 g, anarrowing 20 g being suitable for receiving an indentation resultingfrom crimping the rigid portion 4 g.

In general manner and as shown, the flexible portion can be made with anarrowing 20 w that is situated axially between the portion of theflexible portion for fastening the applicator element on the flexibleportion and the portion of the flexible portion for fastening on theremainder of the stem.

FIG. 10D shows the FIG. 10C stem while the flexible portion 20 is beingflexed. It can be seen in this figure that in addition to the flexibleportion 20 deforming at its annular narrowing, the portion for fasteningthe rigid portion of the stem can also stretch, a gap 310 possiblyappearing externally between the flexible portion and the end of therigid portion 4 g.

FIG. 10E shows the possibility of making the flexible portion 20 with acentral portion 20 i for engaging in a corresponding, housing of therigid portion 4 g, and an outer tubular skirt 20 h for coming to cover atubular skirt 312 that is formed around the housing receiving thecentral portion 20 i. This makes it possible to have a continuousoutside diameter between the rigid portion 4 g and the flexible portion20 where said flexible portion is connected to the rigid portion 4 g.

The outside of the cross-section of the flexible portion can also beother than circular, in particular at at least one point along itslength.

By way of example and as shown in FIG. 11, the flexible portion caninclude one or more grooves 28 that extend axially, thereby encouragingpressure to balance between the inside and the outside of the receptacle2 while the applicator 3 is being inserted into or removed from thereceptacle 2.

Still in a variant, the shape of the cross-section of the flexibleportion can be other than circular, e.g. selected from the followinglist: polygonal; square; rectangular; triangular; non-circular; oblong;oval; elliptical; kidney-shaped; star-shaped; or with one or moregrooves, in addition, the shape of the cross-section of the remainder ofthe stem can be selected from the same list.

The cross-sections of the flexible portion 20 and of the remainder ofthe stem can be identical or different, without going beyond the ambitof the present invention.

In the embodiments described above, the flexible portion 20 defines thedistal end 4 a of the stem 4, but it would not be beyond the ambit ofthe present invention if this were otherwise.

By way of example, FIG. 12 shows an embodiment in which the flexibleportion 20 is disposed between a rigid distal portion 4 b of the stem,and a rigid proximal portion 4 c of the stem.

In addition, in all of the embodiments described above, the stem isshown with a longitudinal axis X that is rectilinear, but it would notbe beyond the ambit of the present invention if this were otherwise.

By way of example, FIG. 13 shows an embodiment in which the longitudinalaxis X of the stem 4 is curved.

The curve of the longitudinal axis X of the stem 4 can be as a result ofthe curved shape of the flexible portion 20, or even as a result of thecurved shape of a rigid portion of the stem 4.

The curved shape can be as a result of inserting a curved Fastenerportion of the flexible portion 20 more or less completely into thehousing 22 of the rigid portion of the stem 4.

In addition, the applicator element can have an envelope surface ofcircular cross-section, or, as shown in FIGS. 14 to 23, it could presentanother shape in cross-section at at least one point along its length,e.g. a triangular shape as shown in FIG. 14.

The applicator element can also be given various other cross-sections,e.g. square, as shown in FIG. 15, or pentagonal or hexagonal, as shownin FIGS. 16 and 17 respectively.

The applicator element can include at least one plane or concave face.By way of example, the applicator element can include an envelopesurface of circular cross-section with at least one flat 30, as shown inFIG. 18, with at least one concave side 32, as shown in FIG. 19, or withat least one convex side 34, as shown in FIG. 20. In FIG. 20, it can beseen that the applicator element can present an envelope surface ofcross-section that is oblong, in particular lens-shaped.

In the cross-section examples shown in FIGS. 14 to 20, the cross-sectionis shown centered relative to the core. In a variant, the core can alsobe off-center relative to the cross-section of the envelope surface atat least one point along the applicator element, as shown in FIGS. 21 to23. In FIG. 21 the cross-section is square, in FIG. 22 it isrectangular, and in FIG. 23 it is oblong. Whatever its shape, thecross-section can be centered or off-center relative to the core.

The envelope surface E can be of constant circular cross-section overthe major portion of the length of the applicator element, or even overits entire length.

In a variant, the envelope surface can present at least one portionhaving a cross-section that varies, e.g. in geometrically similarmanner, e.g. decreasing towards the free end of the applicator element.

Still in a variant, the cross-section of the envelope surface E of theapplicator element can pass through at least one extremum between itstwo axial ends, e.g. a maximum or a minimum, or even both, as can beseen in FIG. 24. In this figure, the cross-section passes through aminimum 40 and two maximums 41, 42.

In another variant, the envelope surface of the applicator element isnot symmetrical about a mid-plane that is perpendicular to the core,e.g. as shown in FIG. 25. In this embodiment, the applicator element ismade from a blank on which facets 50 have been cut.

The longitudinal axis Z of the core 10 of the applicator element 5 cancoincide with the longitudinal axis X of the stem 4, or, in a variant,it can be distinct. By way of example, FIG. 26 shows an embodiment inwhich the core of the applicator element extends along an axis Z formingan angle with the axis X. The angle can be in the range 1°to 15°, forexample.

In addition, in the embodiments described above, the core of theapplicator element 5 is rectilinear, but it would not be beyond theambit of the present invention if this were otherwise.

By way of example, FIGS. 27 to 29 show three embodiments in which thecore of the applicator element is curved. In the embodiment shown inFIG. 27, the applicator element presents a plane face and a concaveface. In the embodiment in FIG. 28, the applicator element presents aplane face 50 and a convex face, and in the embodiment in FIG. 29, theapplicator element presents two plane faces 50.

In the embodiment shown in FIG. 30, the applicator element includes acore 10 that is curved over at least a fraction of its length, and anenvelope surface E that is not symmetrical about a mid-plane that isperpendicular to the core. In addition, the angle between the axis X andthe axis of the core is, at any point along the core, less than 90°. Thefree end of the applicator element is not in alignment with the axis X.

In the embodiment shown in FIG. 27, the applicator element 5 includes afree end 52 that constitutes the point of the applicator element that isthe furthest away from the longitudinal axis X.

In this embodiment, the core of the applicator element extends along alongitudinal axis Z on the same side of a plane containing the axis X.

In another variant shown in FIG. 31, the applicator element is curvedabout at least two axes C₁, C₂ that are not parallel to each other. Theaxes C₁ and C₂ extend in directions that can be perpendicular, forexample.

In the variant shown in FIG. 32, the applicator element is made from ablank in which notches 55 have been cut.

In cross-section, the notches present an outwardly-convex shape, but itwould not be beyond the ambit of the present invention for thecross-section of the notches to present an outwardly-concave shape.

In the embodiments described above, the or is constituted by a twistedwire in which the bristles are held.

The strands of the core can be given a left-hand twist or a right-handtwist.

It is particularly advantageous to use a brush having, a left-hand twistFIG. 33 shows a brush with a core having a left-hand twist, and FIG. 34shows a brush with a core having a right-hand twist.

The path of the sheets N defined by the ends of the bristles is showndiagrammatically by chain-dotted lines, the sheets forming an angle witha plane that is perpendicular to the core. Reference can usefully bemade to European patent EP 0 611 170.

The core can also be a double core, formed by two individual cores thatare twisted together, as shown in FIG. 35. Each individual core cancomprise two strands that are twisted together, trapping bristles. Eachof the two individual cores can be constituted by a branch of a singletwisted core that is folded in a U-shape, the two branches being twistedtogether.

Any kind of bristle can be used in an applicator element made inaccordance with the invention, and in particular bristles presenting across-section that is circular or other than circular. In particular, itis possible to use a mixture of bristles of different kinds, or amixture of bristles of different lengths, optionally of the same kind.

By way of example, the applicator elements shown are made with bristlesof circular section, of diameter lying in the range 65 μm to 400 μm.

It is possible to use bristles presenting, in cross-section, one of theshapes shown diagrammatically in FIGS. 36 to 53, e.g. a circular shapewith a flat as shown in FIG. 36, a flat shape as shown in FIG. 37, astar shape, e.g. a cross shape, as shown in FIG. 38 or having threebranches as shown in FIG. 39, U-shaped as shown in FIG. 40, H-shaped asshown in FIG. 41, T-shaped as shown in FIG. 42, V-shaped as shown inFIG. 43, a hollow shape, e.g. circular as shown in FIG. 44 or square asshown in FIG. 45, forming ramifications, e.g. snowflake-shaped as shownin FIG. 46, of prismatic section, e.g. triangular as shown in FIG. 47,square as shown in FIG. 48, or hexagonal as shown in FIG. 49, or evenoblong-shaped, in particular lens-shaped as shown in FIG. 50, orhourglass-shaped as shown in FIG. 51. It is possible to use bristleshaving portions that are hinged relative to one another, as shown inFIG. 52. It is also possible to use bristles that present at least onecapillary channel 60, as shown in FIG. 53.

Before being put into place between the strands of the core, thebristles 11 that are held between the twisted strands of the core canpresent an optionally rectilinear shape, e.g. an undulating shape, asshown in FIG. 54.

The bristles can be subjected to a treatment that seeks to form, attheir ends, beads 61, as shown in FIG. 55, or spikes 62, as shown inFIG. 56.

It is possible to use flocked bristles, as shown in FIG. 57, or evenbristles that are made by extruding a plastics material containing afiller of particles 64, e.g. particles of a moisture-absorbing material,so as to impart a micro-relief to the surface of the bristles, as shownin FIG. 58, or so as to give them magnetic or other properties.

The bristles can also be made with a material presenting properties thatfavors sliding.

The bristles can be natural or synthetic, and they can, for example, bemade of a material selected from: polyethylene (PE); polyamide (PA), inparticular PA6, PA6/6, PA6/10, or PA6/12; HYTREL®; PEBAX®; silicone; andpolyurethane (PU); this list not being limiting.

The core of the applicator element 5 can also be other than twisted,e.g. including through holes in each of which a bundle of bristles isheld, as shown in FIG. 59.

In this embodiment, the core 10 further includes a front portion 10 aand a rear portion 10 b that are profiled in such a manner as to make iteasier for the applicator element 5 to be inserted into the receptacleand to pass through the wiper member 9.

In another variant shown in FIG. 60, the applicator element 5 is made bymolding a plastics material, in particular by injection molding, and itcomprises a core 10 carrying teeth 66 that are made integrally with thecore 10 and that extend transversally to the axis X of the stem 4.

Naturally, the invention is not limited to the embodiments describedabove.

By way of example, the composition could be applied by means of avibrating applicator.

By way of example and as shown in FIG. 1A, the applicator includes avibration generator 320 (also known as a vibration source) that issecured to the handle 6, for example, and that is suitable for beingfastened on said handle in optionally removable manner.

Such a vibration generator is described in French patent application FR2 882 506.

The vibration makes it possible to obtain better separation of theeyelashes, and when using a composition containing fibers, betterorientation of said fibers and/or greater ease in taking up thecomposition. While taking up composition, the applicator element can besubjected to the vibration of the vibration source, thereby making itpossible, where appropriate, for the composition to be loaded in moreuniform manner on the applicator element.

The flexible portion 20 can amplify the vibration transmitted to theapplicator element 5.

In particular, the flexible portion 20 can be made in such a manner asto resonate with the vibration frequencies from the vibration source320, thereby making it possible to amplify the amplitude of thevibration.

FIG. 61 shows an applicator element 5 that presents the distinctivefeature of comprising a brush 330 having a twisted metal core andbristles 331 held by the core, the brush being carried by a support 332that is made integrally with the flexible portion 20. In the embodimentunder consideration, the support 332 presents teeth 333 on the sideremote from the brush 330. The ends of the core 330 of the brush arefastened in walls 335 and 336 that are made integrally with theremainder of the support and that are profiled so as to make it easierto pass through the wiper member. It would not be beyond the ambit ofthe present invention for the support to be of a different shape, inparticular making it without the teeth 333 or without the brush.

When the receptacle includes a wiper member through which the applicatorelement is removed, the applicator element can optionally be subjectedto vibration while passing through the wiper member, thereby making itpossible to wipe the applicator element in a way that is different tothe way it is wiped when it is not vibrating. By way of example, theuser can thus choose between at least two degrees of wiping theapplicator element, depending on whether or not the applicator elementis vibrating while passing through the wiper member.

The composition can also be applied by means of a device that is used toapply the composition, the device including: removable fastener meansfor fastening to at least one finger, a band, or a wrist, or being handheld; and a vibration source that makes it possible to producevibration.

In another of its aspects, the invention also provides an applicatorcomprising:

-   -   an applicator element for applying a composition to the        eyelashes or the eyebrows;    -   a stem at one end of which the applicator element is fastened;        and    -   a handle that is fastened to the opposite end of the stem,        the stem being made with two segments made of materials that        present different hardnesses, the segment made of the softer        material preferably being adjacent to the applicator element.        The applicator element can be a brush having a twisted metal        core.

In another of its aspects, the invention also provides a vibrationsource and an applicator as defined above.

The term “comprising a” should be understood as being synonymous with“comprising at least one” unless specified to the contrary.

Although the present invention herein has been described with referenceto particular embodiments, it is to be understood that these embodimentsare merely illustrative of the principles and applications of thepresent invention. It is therefore to be understood that numerousmodifications may be made to the illustrative embodiments and that otherarrangements may be devised without departing from the spirit and scopeof the present invention as defined by the appended claims.

What is claimed is:
 1. An applicator for applying a composition tokeratinous fibers, in particular the eyelashes or the eyebrows, theapplicator comprising: a stem having a longitudinal axis and including(1) at least one elastically-deformable flexible portion that issuitable for flexing during application and/or wiping and (2) a rigidportion including a housing for fastening to the flexible portion; andan applicator element that is fastened to the stem and that includes atwisted wire core and bristles that extend transversally to thelongitudinal axis of the stem, the flexible portion of the stem beingadjacent to a first end of the stem, the applicator element beingfastened to the flexible portion, an end of the twisted wire core of theapplicator element being inserted into a housing of the flexibleportion, and the flexible portion of the stem including a narrowing inthe form of an annular groove located between the end of the twistedwire core inserted into the housing of the flexible portion and an endof the rigid portion of the stem adjacent to the flexible portion. 2.The applicator according to claim 1, a total visible length of theflexible portion lying in the range 10 millimeters (mm) to 35 mm.
 3. Theapplicator according to claim 1, a greatest transverse outside dimensionof the flexible portion lying in the range 2 mm to 10 mm.
 4. Theapplicator according to claim 1, a visible portion of the flexibleportion being, thinner than a portion of the flexible portion forfastening, in a portion of the stem.
 5. The applicator according toclaim 1, the stem presenting a top half that is substantiallynon-flexible, the flexible portion being, situated in a bottom half ofthe stem.
 6. The applicator according to claim 1, the flexible portionextending over less than one third of a total length of the stem, betterover less than one fourth.
 7. The applicator according to claim 1, thestem including a single flexible portion, and a remainder of the stembeing rigid.
 8. The applicator according to claim 1, in which theflexible portion is fastened to a remainder of the stem bysnap-fastening, by screw-fastening, by adhesive, by force-fitting, or bycrimping.
 9. The applicator according to claim 1, in which the rigidportion of the stem has at least one housing for receiving at least onefastener portion for fastening the flexible portion on an adjacentportion of the stem.
 10. The applicator according to claim 1, theflexible portion comprising an endpiece inserted in a housing of thestem, the groove and a base of the endpiece constituting two zones ofpreferred deformation for the flexible portion, when the applicatormember is inclined relative to a rest position of the applicator member.11. The applicator according to claim 1, the flexible portion having adiameter equal to a diameter of the adjacent rigid portion, at least ina zone of the flexible portion located in the continuity of the rigidportion.
 12. The applicator according to claim 1, in which the stemincludes one or more rigid portions made of at least one thermoplasticmaterial.
 13. The applicator according to claim 12, the thermoplasticmaterial(s) being selected from the group consisting of: HDPE, LOPE,linear PE, PP, PT, POM, PA, PET, and PBT.
 14. The applicator accordingto claim 13, wherein the rigid portion is made of POM, with an outsidediameter of 4 mm and a length lying in the range 25 mm to 50 mm.
 15. Theapplicator according to claim 1, the flexible portion being made of athermoplastic elastomer.
 16. The applicator according to claim 1, inwhich the core is not rotatable relative to the stem around thelongitudinal axis of the stem.
 17. The applicator according to claim 1,the flexible portion being at least partially flocked.
 18. Theapplicator according to claim 1, the core comprising two twisted strandsof a wire.
 19. The applicator according to claim 1, in which the stem isconnected to a handle that is arranged in such a manner as to close, inleaktight manner, a receptacle containing the composition forapplication.
 20. The applicator according to claim 1, the stem includinga rigid portion of thermoplastic material, of diameter that is greaterthan or equal to 2.5 mm.
 21. The applicator according to claim 1, theflexible portion being configured to resonate with vibration frequenciesfrom a vibration generator that is integrated in the applicator or thatis brought into contact therewith.
 22. An applicator for applying acomposition to keratinous fibers, in particular the eyelashes or theeyebrows, the applicator comprising: stem having a longitudinal axis andincluding (1) at least one elastically-deformable flexible portion, thatis suitable for flexing during application and/or wiping and (2) a rigidportion; and an applicator element that is fastened to the stem and thatincludes a twisted wire core and bristles that extend transversally tothe longitudinal axis of the stem, the flexible portion of the stembeing adjacent to a first end of the stem, the applicator element beingfastened to the flexible portion, and the flexible portion of the stemincluding a housing, and an end of the twisted wire core of theapplicator element being inserted into the housing.
 23. The applicatoraccording to claim 22, a total visible length of the flexible portionlying in the range 10 millimeters (mm) to 35 mm.
 24. The applicatoraccording to claim 22, a greatest transverse outside dimension of theflexible portion lying in the range 2 mm to 10 mm.
 25. The applicatoraccording to claim 22, a visible portion of the flexible portion beingthinner than a portion of the flexible portion for fastening in aportion of the stem.
 26. The applicator according to claim 22, theflexible portion extending over less than one third of a total length ofthe stem.
 27. The applicator according to claim 22, the stem including arigid portion of thermoplastic material, of diameter that is greaterthan or equal to 2.5 mm.
 28. A packaging and applicator device forapplying a cosmetic composition to the eyelashes or the eyebrows, thedevice comprising an applicator according to claim 1, and a receptaclecontaining the composition for application.
 29. A cosmetic treatmentusing an applicator according to claim 1, in which a composition isapplied on the applicator element by modifying an angle formed betweenthe applicator element and the stem by deforming the flexible portion.